Footwear sole



FIG. 1 is a perspective view of the footwear sole embodying the new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

FIGS. 1-5 show portions of an article of footwear in broken lines. The portions illustrated in broken lines are shown for environmental purposes and do not form any part of the claimed design. Further, the solid lines immediately adjacent the broken-line portions of the design form the boundary of the design. 

CLAIM The ornamental design for a footwear sole, as shown and described. 